LEGO Racing Transporter MOC with a hidden pneumatic mechanism

https://preview.redd.it/79p2lf1dvewh1.jpg?width=1536&format=pjpg&auto=webp&s=ae19c6357fd3d6fefee0053df5f2ebfd840e6549 https://preview.redd.it/ydge4qzcvewh1.jpg?width=3000&format=pjpg&auto=webp&s=1443e8dba10ca5bbe183f67615421145d79ec564 https://preview.redd.it/e2zh3qzcvewh1.jpg?width=1536&format=pjpg&auto=webp&s=4ca87168d2ef21520c5e77e607f3faf778fdbd0c https://preview.redd.it/stf7krzcvewh1.jpg?width=1536&format=pjpg&auto=webp&s=30643d4ed27a97c38795da69b659a9c1f1880a1e...